//VRIntersection VRIntersect::intersect(VRTransform* caster, VRObject* tree, VRDevice* dev) {
VRIntersection VRIntersect::intersect(VRObject* tree) {
VRDevice* dev = (VRDevice*)this;
VRTransform* caster = dev->getBeacon();
Line ray = caster->castRay();
IntersectActionRefPtr iAct = IntersectAction::create();
iAct->setLine(ray);
if (tree == 0) tree = dynTree;
if (tree == 0) return VRIntersection();
VRIntersection ins = intersections[tree];
uint now = VRGlobals::get()->CURRENT_FRAME;
if (ins.hit && ins.time == now) return ins; // allready found it
ins.time = now;
iAct->apply(tree->getNode());
ins.hit = iAct->didHit();
if (!ins.hit) { intersections[tree] = ins; lastIntersection = ins; return ins; }
ins.object = tree->find(iAct->getHitObject()->getParent());
ins.point = iAct->getHitPoint();
ins.normal = iAct->getHitNormal();
ins.triangle = iAct->getHitTriangle();
ins.texel = VRIntersect_computeTexel(ins, iAct->getHitObject());
intersections[tree] = ins;
lastIntersection = ins;
if (showHit) cross->setWorldPosition(Vec3f(ins.point));
//cout << "VRIntersect::intersect " << obj << endl;
return ins;
}
VRIntersection VRIntersect::intersect(VRObject* tree) {
VRDevice* dev = (VRDevice*)this;
VRTransform* caster = dev->getBeacon();
VRIntersection ins;
if (caster == 0) { cout << "Warning: VRIntersect::intersect, caster is 0!\n"; return ins; }
if (tree == 0) tree = dynTree;
if (tree == 0) return ins;
if (intersections.count(tree)) ins = intersections[tree];
uint now = VRGlobals::get()->CURRENT_FRAME;
if (ins.hit && ins.time == now) return ins; // allready found it
ins.time = now;
Line ray = caster->castRay(tree);
VRIntersectAction iAct;
//IntersectActionRefPtr iAct = IntersectAction::create();
iAct.setTravMask(8);
iAct.setLine(ray);
iAct.apply(tree->getNode());
ins.hit = iAct.didHit();
if (ins.hit) {
ins.object = tree->find(iAct.getHitObject()->getParent());
ins.point = iAct.getHitPoint();
ins.normal = iAct.getHitNormal();
if (tree->getParent()) tree->getParent()->getNode()->getToWorld().mult( ins.point, ins.point );
if (tree->getParent()) tree->getParent()->getNode()->getToWorld().mult( ins.normal, ins.normal );
ins.triangle = iAct.getHitTriangle();
ins.texel = VRIntersect_computeTexel(ins, iAct.getHitObject());
lastIntersection = ins;
} else {
ins.object = 0;
if (lastIntersection.time < ins.time) lastIntersection = ins;
}
intersections[tree] = ins;
if (showHit) cross->setWorldPosition(Vec3f(ins.point));
return ins;
}
